Add optional dependecies to pyproject

pyproject.toml

@@ -26,6 +26,24 @@ dependencies = [
     "xarray",
 ]
 
+[project.optional-dependencies]
+docs = [
+    # building documentation
+    "sphinx",
+    "myst-parser",
+    "sphinx-book-theme",
+]
+
+dev = [
+    # linting and testing
+    "pip",
+    "isort",
+    "flynt",
+    "flake8",
+    "mypy",
+    "pre-commit",
+]
+
 [build-system]
 requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
@@ -36,7 +54,6 @@ include_trailing_comma = true
 force_grid_wrap = "0"
 use_parentheses = true
 line_length = "79"
-skip = "e3sm_diags/e3sm_diags_driver.py"
 
 [tool.mypy]
 python_version = "3.10"